Jan. 25, 2012 (China Knowledge) - tmall.com, a unit of taobao.com, the leading Chinese online B2C portal owned by Alibaba.com Ltd<1688>, dominated China's B2C market with 110.46 million unique visitors per month on average in the first 11 months of 2011, according to a Chinese research institute.

360buy.com, the largest B2C online retailer in China, ranked second with 44.46 million unique visitors per month on average in the 11-month period, followed by the country's leading online book seller E-Commerce China Dangdang<DANG> with 31.31 million, Amazon.cn with 29.81 million and VANCL.com, Chinese leading B2C online clothing retailer, with 27.22 million.

shop.qq.com, owned by Tencent Holdings<0700>, a leading provider of Internet and mobile and telecom value-added services in China, ranked sixth with 15.78 million unique visitors per month on average, followed by suning.cn, an online unit of Suning Appliance Co Ltd<002024>, with 13.03 million, online supermarket yihaodian.com with 12.52 million, online cosmetics retailer Moonbasa.com with 12.46 million and VIPshop.com with 8.12 million.

In 2011, China's online transaction value totaled RMB 773.56 billion, surging 67.8% from 2010 or accounting for 4.3% of overall retail sales of social consumption products in the country.